North Coast CNPS

Workshop: A Primer on Sedges: Saturday, March 23, 2019

Instructor: Gordon Leppig

Target Audience: Professional and student botanists, consultants, regulators, and ecologists. Participants should have knowledge of basic plant terminology and use of dichotomous keys.

Participants will gain proficiency in:

  • Basic sedge terminology, morphology, and ecology.
  • Keying terminology and techniques using The Jepson Manual, 2nd Edition and other references.
  • Sight recognition of some ecologically dominant sedges based upon habitat.
  • Appreciation for the beauty, diversity, complexity, and ecological value of sedges.
  • A richer understanding of some of northern California‚Äôs most common and rare sedges.

Registration and Cost: $120 for CNPS members; $150 for non-members.

Register: Fill in the form below.


The last day to register is March 1.

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Description: This is an intensive introductory/intermediate course on sedge identification and keying with an emphasis on species occurring in Northern California and the Pacific Northwest. The workshop starts with an introductory review of sedge taxonomy, ecology, biogeography, and essential sedge keying terminology and morphology.  The rest of the day will be guided dissection and keying of specimens in the laboratory using a microscope and the Jepson Manual 2nd Edition.  Keying will be punctuated with guidance and commentary on keying groups and species characteristics. Many specimens will be available for review, dissection, and comparison. This workshop is geared for beginner and intermediate caricologists, but familiarity with keying plants in the Jepson Manual is required.  The emphasis will be on learning some of the most common and rare sedges in northern California.

Venue:  Humboldt State University, Arcata, CA.  Directions and additional information will be provided to registered participants about a week before the workshop.

Schedule: 9:00am to 5:00pm (1 Hr. lunch). Please arrive early to get setup.  

Materials Required: Please bring...

  • Quality dissecting equipment, including extra-fine forceps and a metric ruler
  • Hand lens
  • Notebook and writing implements
  • Lunch (or find lunch nearby in Arcata)
  • The Jepson Manual, 2nd Edition
  • Field Guide to the Sedges of the Pacific Northwest 1st or 2nd Edition (recommended)

Materials Provided: CNPS will provide handouts, diverse material for keying and comparison, and dissecting scopes. Coffee, tea, fruit, and baked goods will be available during the morning session.

About the Instructor:

Gordon Leppig is a Senior Environmental Scientist with the California Department of Fish and Wildlife and has been a student of sedges for over 20 years.

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